KWA M16 Prometheus and bucking

Putting in a Prometheus 509mm tb in my M16 what type soft/hard and brand bucking will work the best, would like to order both at the same time. If the stock one will work thats fine, I've read that if your over 415fps you should use hard (I'm at 430fps with .20 per the test paper I got from airsoftgi with the gun) ? Also, is there anything else I should change? I use a 9.6v and a KWA RA-TECH 11.1v.

If you are shooting 430, you want a hard type bucking. I don't think many buckings work with the promy barrels, unless KWA fixed that issue. You might have to stick with the stock one.

Im looking into fire-fly. I heard some of the best accuracy combo's come from Prom barrels, Big-Out H nubs, and fire-flys. I don't personally know, but Im looking into getting a fire-fly bucking, but their $20.

Im looking into fire-fly. I heard some of the best accuracy combo's come from Prom barrels, Big-Out H nubs, and fire-flys. I don't personally know, but Im looking into getting a fire-fly bucking, but their $20.

Same with me. The main problem for me is that ASGI doesn't have these.

I have a prom. barrel with fire fly hop bucking. I had to cut about 2mm of the bucking off to get the clip back on. It is a little tight but lube it up some and it goes on good. I will be testing for accuracy in a few days.
airsoftatlanta.com has firefly's and big out h nubs cheaper than any were else